James Rowley Harvey

US Patent:

52563391, Oct 26, 1993

Filed:

Oct 30, 1992

Appl. No.:

7/968882

Inventors:

Clarence G. Thornton - Colts Neck NJ
James F. Harvey - Tinton Falls NJ
Robert A. Lux - Toms River NJ
Robert J. Zeto - Eatontown NJ
Hardev Singh - Robbinsville NJ
Maurice Weiner - Ocean NJ
Terence Burke - Ocean NJ
Lawrence E. Kingsley - Shrewsbury NJ

Assignee:

The United States of America as represented by the Secretary of the Army - Washington DC

International Classification:

B29C 900

US Classification:

264 10

Abstract:

The present invention describes a method of explosively vaporizing a piece f semiconductor material in a plasma formed by a fast, high voltage current pulse. The semiconductor material may be formed from crystalline, polycrystalline, or amorphous forms of semiconductor material. After the semiconductor material is vaporized, it coalesces as the plasma begins to cool and is deposited in a collection system. The size and composition of the microparticles formed by this process can be controlled by conditioning the plasma in predetermined manners. In particular, impurities can be introduced either in the target material, in gas introduced in the plasma, or in the gas through which the coalescing microparticles travel prior to deposition.

US Patent:

52238024, Jun 29, 1993

Filed:

Apr 1, 1992

Appl. No.:

7/862617

Inventors:

James F. Harvey - Tinton Falls NJ
Robert A. Lux - Toms River NJ
Thomas P. Higgins - Tinton Falls NJ
Arthur Paolella - Howell NJ
Dana J. Sturzebecher - Tinton Falls NJ

Assignee:

The United States of America as represented by the Secretary of the Army - Washington DC

International Classification:

H03B 706

US Classification:

331177R

Abstract:

An optically controlled resonant tunnel diode oscillator assembly having a esonant tunnel diode (RTD) which, when voltage biased, oscillates at a free running frequency; an optical signal delivery system, such as a light intensity modulator connected to optical fibers; and other oscillator circuitry which one skilled in the art could readily adapt to the concepts of the present invention. In operation, the free running oscillation of the RTD can be frequency modulated or can be intensity locked to the intensity modulated optical signal delivered via the optical signal delivery system.

US Patent:

53355610, Aug 9, 1994

Filed:

Oct 23, 1992

Appl. No.:

7/965761

Inventors:

James Harvey - Alexandria VA

International Classification:

F16H 3320

US Classification:

74 84R

Abstract:

An impulse converter is provided for converting angular impulses into linear impulses. The impulse converter includes a frame with frame members adapted to be oppositely rotated on the frame. The frame members may be rotated by any rotation generating device. Arms and masses are provided on the frame members, the masses are to be accelerated both radially and tangentially by the arms due to the rotation of the frame members. A rack and pinion mass retrieval unit is provided on each of the arms to throw out and/or retrieve the masses back along the length of the arm. The masses are re-accelerated along the arms, and re-retrieved by the rack and pinion mass retrieval unit which converts the radial and tangential accelerations into linear impulses.

US Patent:

51442612, Sep 1, 1992

Filed:

Jan 15, 1992

Appl. No.:

7/821729

Inventors:

James F. Harvey - Tinton Falls NJ
Robert A. Lux - Toms River NJ
Thomas P. Higgins - Tinton Falls NJ
Arthur Paolella - Howell NJ
Dana J. Sturzebecher - Tinton Falls NJ

Assignee:

The United States of America as represented by the Secretary of the Army - Washington DC

International Classification:

H03L 700

US Classification:

331 66

Abstract:

An optically injection locked resonant tunnel diode oscillator assembly hng a resonant tunnel diode (RTD) which, when voltage biased, oscillates at a free running frequency; an optical signal delivery system, such as a light intensity modulator connected to optical fibers; and other oscillator circuitry which one skilled in the art could readily adapt to the concepts of the present invention. In operation, the free running oscillation of the RTD can be locked to the phase and frequency of the intensity modulated optical signal delivered via the optical signal delivery system. This injection locking occurs as the modulation frequency approaches the free running oscillation frequency.

US Patent:

53509315, Sep 27, 1994

Filed:

May 19, 1993

Appl. No.:

8/064774

Inventors:

James F. Harvey - Tinton Falls NJ
Robert A. Lux - Toms River NJ

Assignee:

The United States of America as represented by the Secretary of the Army - Washington DC

International Classification:

H01L 29161
H01L 2712
H01L 2968

US Classification:

257 14

Abstract:

One or more double barrier resonant tunneling filters are provided for electron propagation mode control in nanostructure quantum wire electron waveguides and in quantum interference devices in the waveguide.